Teeeitoey



(No Model.) J. F. JUST.

CABLE RAILWAY. I

No. 379,169. Patented M81. 6,1888.

17072711 7 fast WITNESSES .zlitorney UNITED STATES PATENT OFFIC JOHN F. JUST, or ROBEY, DAKOTA TERRITORY.

CABLE RAILWAY.

SPECIFICATION forming part of Letters Patent No. 379,169, dated March 6. 1888.

Application filed April 14, 1887. Serial No. 234,809. (No model.)

To all whom it may concern:

Beitknown that I, Joan F. JUsT,a citizen of the United States of America, residing at Robey, in the county of Aurora and Territory of Dakota, have invented certain new and useful Improvements in Gable Railways; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to certain new and useful improvements in cable railways, the object of my invention being to provide a meanswhereby cars can be carried across drawbridges, the construction and arrangement being such as not to interfere with the movement of the cable when the draw is opened, the cable upon the draw being idle when said draw-bridge is open.

My invention consists in mounting a cable upon a bridge draw, so that it will be independent of the main (able when the draw is open, and will be driven when the draw is closed, as will be hereinafter fully set forth, and specifically pointed out in the claim.

In the accompanying drawings, which illustrate my invention, Figure 1 is a plan view showing my invention applied to a drawbridge, and Fig. 2 is a detail view.

A A refer to the sections of a bridge, which may be of ordinary construction, B being the draw or turn-table of ordinary construction, as far as the means for operating the same or turning the same upon its pivoted support is concerned.

0 refers to the cable, which may be driven in any suitable manner. said cable passing in one direction between the rails or a and in the opposite direction between the rails b b, said cable passing over a grooved pulley, D, to the under side of which is attached a cog-wheel, (1, said pulley and cog-wheel being supported in suitable bearings.

E refers to a cog-wheel, which is preferably mounted in bearings upon one end of the stationary portion of the bridge, so as to mesh with the cog-wheel d and be turned thereby.

At the opposite ends of the bridge-draw are mounted grooved pulleys F, to the under sides of which are secured cog-wheelsf, and around the grooved pulleys F passes an endless cable, G.

It will be seen by this construction that the cable G will be moved between corresponding tracks in the same direction as the cable 0, and that when the draw or turn-tableis moved, so that the tracks will be out of line, the cable Gwill have no actuating means,and will therefore remain idle.

I prefer that the shafts of both of the drawpulleys F be fitted with a gear-wheel, f, and that the gears d and E be arranged on the opposite bridge-sections A, as this insures a uniformity of speed throughout the length of the cable, though this is not essential to the operation of a cable-way except when the cable 0 is actuated by power at only one of the approaches to the draw. rangement shown in Fig. 1 would be necessary In such a case the arto transmit motion from one section of the cable G across the draw to the other section of said cable.

. The cars when passing on and off the bridge will have to have the grasp elevated or disconnected from the cable, as is usual in passing obstructions or switching.

The device hereinbefore described is not only applicable to draw-bridges, but may be applied to turn'tables for cable roads.

I claim In a cable-railway system, the combination, substantially as described. or the cable proper mounted on terminal pulleys, a bridge-draw or turn-table provided at each end with cablepulleys, a cable mounted thereon, a gearwheel secured to the pulley-shaft of the cable proper, a gear-wheel secured to the pulleyshaft at the draw ends, and a gear-wheel secured to constantlymesh with the first-named gear-wheel, but with the gear-wheel on the draw end only when the draw is closed.

In testimony whereof I affix my signature in presence of two witnesses.

JOHN F. JUST.

W1tnesses:

N. J. ROWE, HUGH HARRIS. 

